Speciation of plants can make us grows plants with a desired attribute.
This make the plants that we want could fulfill more of our needs, whether it's nutrients , material, or aesthetic purposes
hope this helps
The correct answer is that "the T cell enters a state of anergy".
The activation of T cells requires two signals: (1) antigen specific signal presented by an antigen presenting cell (either a macrophage or a dendritic cell) that activates t cell receptors and (2) co-stimulatory signals that is not antigen specific but rather found in the plasma membrane of the antigen presenting cell (i.e. CD28). In the absence of a co-stimulatory signal, the t cell will enter a state of anergy or the inability to produce an immune response toward an offending antigen.
Answer:
2: Amount of precipitation, average temperature
3: Desert
4: The tundra
5: All of the above
The answer is C. The Scientific Method is the method used whenever you want to explain or figure out anything scientifically. It involves hypothesis, experiments, and conclusions
